I am sure lots of guys posted this question, but, seriously I can't find a real and good answer, even with the spreadsheet, cause I am not really good with it.

Okay so, I am arms spec atm, and I want to be fury (because I am lazy about the arms spec, I want more pewpew whirlwind!), but I can't find an answer about strength or arp, with or without trinket, if someone can help me !

Firstly, I can have only maximum of 70% Armor Pen with my current gears (or the gears I can have in the future) (my guild won't kill coliseum hard mode soon...)And the question is, what the best for my current gears:

1) Full Armor pen WITHOUT grim toll, but I don't know if only 70% is good in fury spec, any advices?2) 57% armor pen with grim toll (mjolnir a day...), then full strength, so every 45sec I have 100% pen then the strength during no proc (if 70% is not really good).3a) Ignore the armor pen, full strength with grim toll.3b) Full strenght without grim toll (greatness / victor's call)

As you can see the real question is, 70% armor pen WITHOUT grim toll is good enough, or the strength / grim toll is more powerful?